The price would be about the same for a complete overhaul or a brand new one. There is no such thing as having a repair on a clock movement being better than a new movement. The cost of having this done would be the same price as a new movement. The entire movement would be disassembled to replace this worn escape wheel if there is another one found that will work. The escape wheel alone would be hard to find, and hard to replace both. The escape wheel is worn and it is advancing more than one tooth at a time. If the clock kept time in the past but now does not, it means a worn gear. Of course the larger the bob, the longer it will be beyond that CM stamp measurement. This is based on a 4 1/2 inch bob diameter. This will include the suspension spring, the leader and also the pendulum itself. These German units measure there pendulum lengths from the top of the movement and all the way down. The pendulum length is overall and not just the pendulum itself. So it will give a full timing adjustment range all over again and can go up or down as needed. 1 3/4 inches is a good measurement to make one of these longer or shorter as needed, as this is the length of the threads at the bottom of the bob. It is possible to shorten or lengthen the pendulum leader to put the clock in time range with some solder if needed. The leader is the part that the pendulum top hook will mount to. The leader is about 5 to 7 inches long and engages with the crutch on back of the movement. It can be altered with the overall length by the pendulum itself or the leader it hangs onto. If there is no more adjustment If the bob is all the way up and its still too slow or fast, shorten either the pendulum or the leader it hangs on to correct.Ī lyre pendulum that does not keep time with the bob all the way adjusted will need its length altered. One full turn is somewhere around 1-2 minutes a day faster or slower. If the clock is fast, do the same but lower the clock's pendulum bob instead. If the clock is timing slow, raise the pendulum bob by turning the nut at the bottom of the bob. A longer pendulum makes the clock run slower. A shorter pendulum will make the clock run faster. To turn the nut one way raises the bob and the other lowers it. At the bottom of the bob is some adjustment threads and a nut. The fine timing can be done only with the pendulum adjustment located at the very bottom. When the pendulum is correct for that particular movement it will hang on the leader and keep approximate time. Rarely has anything to do with the movement itself, unless the movement not geared to the proper length from the start.Ī mechanical clock is easy to time providing the correct pendulum. Timing a mechanical pendulum clock is all about the overall pendulum length.
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